title: The suppressive effect of triiodothyronine on the release of thyrotropin in old age.
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging; D006801:Humans; D013972:Thyrotropin / Q000097:blood*; D013973:Thyrotropin-Releasing Hormone; D014284:Triiodothyronine / Q000097:blood / Q000494:pharmacology*
chemical_list: D014284:Triiodothyronine; D013973:Thyrotropin-Releasing Hormone; D013972:Thyrotropin